switch to coroutine execution model

src/NetworkAddresses.hh

@@ -1,20 +1,19 @@
 #pragma once
 
-#include <netinet/in.h>
 #include <stdint.h>
 
+#include <asio.hpp>
 #include <map>
 #include <string>
 
 // PSO is IPv4-only, so we just treat addresses as uint32_t everywhere because
 // it's easier
 
-uint32_t resolve_address(const char* address);
 std::map<std::string, uint32_t> get_local_addresses();
 uint32_t get_connected_address(int fd);
 bool is_loopback_address(uint32_t addr);
 bool is_local_address(uint32_t daddr);
-bool is_local_address(const sockaddr_storage& daddr);
+bool is_local_address(asio::ip::tcp::endpoint& daddr);
 
 std::string string_for_address(uint32_t address);
 uint32_t address_for_string(const char* address);